devstatscode/env_test.go at master · cncf/devstatscode · GitHub

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package devstatscode

import (
"fmt"
"os"
"testing"

	lib "github.com/cncf/devstatscode"
	testlib "github.com/cncf/devstatscode/test"
)

funcTestEnv(t*testing.T) {

// Test cases
vartestCases= []struct {
namestring
environmentmap[string]string
prefixstring
suffixstring
newEnvs []string
expectedSavemap[string]string
expectedEnvmap[string]string
	}{
 {
"No op",
map[string]string{},
"",
"",
 []string{},
map[string]string{},
map[string]string{},
 },
 {
"No replaces",
map[string]string{"a": "A", "c": "C", "b": "B"},
"",
"",
 []string{},
map[string]string{},
map[string]string{"a": "A", "c": "C", "b": "B"},
 },
 {
"No suffix",
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B"},
"pref_",
"",
 []string{},
map[string]string{},
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B"},
 },
 {
"No prefix and no suffix hit",
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B"},
"",
"_suff",
 []string{},
map[string]string{},
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B"},
 },
 {
"No prefix with suffix hit",
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B", "pref_a_suff": "D"},
"",
"_suff",
 []string{},
map[string]string{"pref_a": "A"},
map[string]string{"pref_a": "D", "pref_c": "C", "pref_b": "B", "pref_a_suff": "D"},
 },
 {
"Prefix and suffix",
map[string]string{"pref_a": "A", "pref_c": "C", "pref_b": "B", "pref_a_suff": "D", "a": "A", "a_suff": "D"},
"pref_",
"_suff",
 []string{},
map[string]string{"pref_a": "A"},
map[string]string{"pref_a": "D", "pref_c": "C", "pref_b": "B", "pref_a_suff": "D", "a": "A", "a_suff": "D"},
 },
 {
"Replace all starting with 'a' with suffix 2",
map[string]string{"a1": "1", "a2": "2", "b1": "3", "b2": "4", "a12": "5", "a22": "6", "b12": "7", "b22": "8"},
"a",
"2",
 []string{},
map[string]string{"a": "{{unset}}", "a1": "1", "a2": "2"},
map[string]string{"a1": "5", "a2": "6", "b1": "3", "b2": "4", "a12": "5", "a22": "6", "b12": "7", "b22": "8"},
 },
 {
"Need to save empty variables too",
map[string]string{"a": "", "b": "B", "c": "", "a2": "1", "b2": "2", "c2": "3"},
"",
"2",
 []string{},
map[string]string{"a": "", "b": "B", "c": ""},
map[string]string{"a": "1", "b": "2", "c": "3", "a2": "1", "b2": "2", "c2": "3"},
 },
 {
"Replace nonexisting var",
map[string]string{"pref_a_suff": "new_value"},
"pref_",
"_suff",
 []string{"pref_a"},
map[string]string{"pref_a": "{{unset}}"},
map[string]string{"pref_a": "new_value", "pref_a_suff": "new_value"},
 },
 {
"Crazy",
map[string]string{"aa": "2", "a": "1", "aaaa": "4", "aaa": "3"},
"a",
"a",
 []string{},
map[string]string{"a": "1", "aa": "2", "aaa": "3"},
map[string]string{"a": "2", "aa": "3", "aaa": "4", "aaaa": "4"},
 },
	}

// Execute test cases
forindex, test:=rangetestCases {
// Remember initial environment
currEnv:=make(map[string]string)
forkey:=rangetest.environment {
currEnv[key] =os.Getenv(key)
 }

// Set new environment
forkey, value:=rangetest.environment {
err:=os.Setenv(key, value)
iferr!=nil {
t.Error(err.Error())
 }
 }

// Call EnvReplace
saved:=lib.EnvReplace(test.prefix, test.suffix)

// Get replaced environment
replacedEnv:=make(map[string]string)
forkey:=rangetest.environment {
replacedEnv[key] =os.Getenv(key)
 }
for_, key:=rangetest.newEnvs {
replacedEnv[key] =os.Getenv(key)
 }

// Call EnvRestore
lib.EnvRestore(saved)

// Get restored environment
restoredEnv:=make(map[string]string)
forkey:=rangetest.environment {
restoredEnv[key] =os.Getenv(key)
 }

// Remove the test environment
forkey:=rangetest.environment {
//err := os.Setenv(key, currEnv[key])
err:=os.Unsetenv(key)
iferr!=nil {
t.Error(err.Error())
 }
 }

// Maps are not directly compareable (due to unknown key order) - need to transorm them
testlib.MakeComparableMapStr(&test.environment)
testlib.MakeComparableMapStr(&test.expectedSave)
testlib.MakeComparableMapStr(&test.expectedEnv)
testlib.MakeComparableMapStr(&saved)
testlib.MakeComparableMapStr(&replacedEnv)
testlib.MakeComparableMapStr(&restoredEnv)

// Check if we got expected values
got:=fmt.Sprintf("%+v", replacedEnv)
expected:=fmt.Sprintf("%+v", test.expectedEnv)
ifgot!=expected {
t.Errorf(
"Test case number %d \"%s\"\nExpected replaced env:\n%+v\nGot:\n%+v\n",
index+1, test.name, expected, got,
 )
 }
got=fmt.Sprintf("%+v", saved)
expected=fmt.Sprintf("%+v", test.expectedSave)
ifgot!=expected {
t.Errorf(
"Test case number %d \"%s\"\nExpected saved env:\n%+v\nGot:\n%+v\n",
index+1, test.name, expected, got,
 )
 }
got=fmt.Sprintf("%+v", restoredEnv)
expected=fmt.Sprintf("%+v", test.environment)
ifgot!=expected {
t.Errorf(
"Test case number %d \"%s\"\nExpected restored env:\n%+v\nGot:\n%+v\n",
index+1, test.name, expected, got,
 )
 }
	}
}